17th Aug 2003, 13:37

My aunt's ex boss had a jeep comanche. With his permission, He let's us get in his Comanche. And every time just about. we get in it to take off the next time she start it, it die on us. and she tries to get it start back up again, but it didn't start until she pumped the gas to make it start. Other than that, that's not strange.

21st Mar 2005, 06:34

The only good advice I can offer as of now is to rebuild the engine. The piston rings are what cause you to have the blow by. The rings slowly wear to allow the compression in the piston chambers to escape around the pistons. I am currently replacing my 4.0L with a crate motor for this very same problem.

1988 Jeep Comanche Pioneer 4.0 Litre I-6 from North America

Summary:

One of Jeep's finest offerings ever!

Faults:

The motor was tired. It belonged to a farmer who used it to irrigate, so it idled a lot & breathed a lot of dust over the years. At 145000 miles, I replaced the engine. The paint is nearly gone on the hood & top.

General Comments:

Competition in the small truck market was too much for AMC in the late 80's & early 90's. Too bad it's not still in production! I use the truck primarily for hunting/fishing/4-wheeling. It has never left me stranded and I'd put it up against rock crawlers with 4x what I have in it.